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Post by brobear on May 5, 2020 19:22:24 GMT -5
How does is this grounds for a heated debate again? Not a debate. Big cat enthusiasts simply refuse to accept that bears age slower than cats. A 6 year old lion or tiger is a full-grown kitty while a 6 year old grizzly is a sub-adult with a lot of growing to do over the next 4 to 6 years.
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Post by Deleted on May 5, 2020 19:47:47 GMT -5
How does is this grounds for a heated debate again? Not a debate. Big cat enthusiasts simply refuse to accept that bears age slower than cats. A 6 year old lion or tiger is a full-grown kitty while a 6 year old grizzly is a sub-adult with a lot of growing to do over the next 4 to 6 years. So people that debate lion or tiger vs grizzly and use this as a way to make the bear look weak to them. Got it. Next.
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Post by King Kodiak on May 5, 2020 19:59:53 GMT -5
How does is this grounds for a heated debate again? Not a debate. Big cat enthusiasts simply refuse to accept that bears age slower than cats. A 6 year old lion or tiger is a full-grown kitty while a 6 year old grizzly is a sub-adult with a lot of growing to do over the next 4 to 6 years. Well actually, a 6 year old brown bear is considered an adult, even at 5 years old, its just not a full grown adult, thats the difference.
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Post by brobear on May 6, 2020 3:37:48 GMT -5
Not a debate. Big cat enthusiasts simply refuse to accept that bears age slower than cats. A 6 year old lion or tiger is a full-grown kitty while a 6 year old grizzly is a sub-adult with a lot of growing to do over the next 4 to 6 years. Well actually, a 6 year old brown bear is considered an adult, even at 5 years old, its just not a full grown adult, thats the difference. In human terms; a bruin ranging from 5 years old up until 9 years old is a teenager ( 13 to 19 ). A 9 year old equal with a 20 year old boy/man. From 10 years old and up is definitely a Full Grown Bear.
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Post by King Kodiak on May 6, 2020 6:24:10 GMT -5
Well actually, a 6 year old brown bear is considered an adult, even at 5 years old, its just not a full grown adult, thats the difference. In human terms; a bruin ranging from 5 years old up until 9 years old is a teenager ( 13 to 19 ). A 9 year old equal with a 20 year old boy/man. From 10 years old and up is definitely a Full Grown Bear. This is how it is for brown bears: bears 5 to 8 years old are considered "adults" by all biologists, but its just that they are not full grown yet.
From 0 to 2.5 years-cub From 2.5 to 5 years-subadult From 5 to 9 years-adult but not fully grown From 9 years and up-adult and fully grown.
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Post by brobear on May 6, 2020 12:57:06 GMT -5
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Post by brobear on May 6, 2020 16:29:20 GMT -5
pdfs.semanticscholar.org/09ec/1bf043ec3ec3db7ae875c8010cd1d3e13d00.pdf Males reached mean adult size in 7 of the 11 dimensions by 6 years (body length, girth, height at the shoulder, neck circumference, head length, front pad length, and rear pad width) and in all 11 by 9 years. Overlap in ranges of all measurements occurred in every age class for both males and females. In general, males appeared to steadily gain weight annually until at least 15 years of age (Fig. 2). Mean annual rate of weight increase for males aged 4-15 years (5.6%) was markedly less than for males aged cub through 3 years (42.1%).
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Post by brobear on May 7, 2020 8:14:56 GMT -5
In human terms; a bruin ranging from 5 years old up until 9 years old is a teenager ( 13 to 19 ). A 9 year old equal with a 20 year old boy/man - full-grown and fully developed but young. From 10 years old and up is definitely a Full Grown Prime Grizzly Boar. A lion or tiger is a Full Grown Prime big cat by age 5... and old at 10.
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Post by brobear on May 7, 2020 9:43:22 GMT -5
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Post by brobear on May 10, 2020 5:14:55 GMT -5
By Warsaw: The point is pretty simple .Maximum life span is highly correlate with Body growth rate. "A wild tiger is usually past its prime by 12 - 13 years " , but this is not true for male brown bears. and adult females off course Theory suggests that age-specific reproduction in brown (grizzly) bears should be well described by the bell-shaped curve of Gaillard et al. (1994). Moreover, because brown bears do not provide extended maternal care to previous offspring or their young, patterns of reproductive senescence should mirror patterns of survival, giving insights into physical longevity and expected female age structure under the conditions in which brown bears evolved. Such patterns have not previously been quantified, however. Reviews by Craighead and Mitchell (1982:527) and Pasitschniak-Arts (1993:5) concluded that "reproductive longevity approximates physical longevity." Later, Craighead et al. (1995:414) recognized that "young and old adult females (4-8 and 21-25 years of age, respectively) had lower fertility than prime-aged females (9-20)," but they lacked sufficient information for older age classe Reproductive maturation and senescence in the female brown bear.
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Post by brobear on May 12, 2020 3:00:57 GMT -5
WARSAW: By the way, no expert, biologist or even a zookeeper would ever refer to a 3 year old brown bear as an "adult", absolutely no way. Just google "3 year old brown bear", and every single source refers to the bear as a CUB, never an adult. - A 3 year old brown bear is a cub. - FACT.
*So; from birth to 3 a grizzly is a cub. From 4 through 5 a juvenile bear. From 6 through 8 ( in human terms ) a teenager ( sub-adult ). A 9 year-old grizzly is a young full-grown bear ( equal to a 20 year old boy/man ). From 10 years old and up this is a Prime Full-Grown Grizzly Boar.
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Post by King Kodiak on May 12, 2020 8:06:35 GMT -5
He is just generalizing, a 3 year old brown bear just becomes a sub-adult.
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Post by brobear on May 12, 2020 9:16:54 GMT -5
He is just generalizing, a 3 year old brown bear just becomes a sub-adult. It's simply a label. daskellah.weebly.com/reproduction.html Once the cubs are capable of fending for themselves, the mother will drive them away from her and look to breed again. By this time the young grizzly weighs between 350 to 700 lbs. depending on the abundance of food. As these bears grow in size and strength, their diet will expand as they start to possess the ability to kill larger prey. These male grizzlies will wait until they reach their sexual maturity before they breed, with some mature at 4 years old and others needing as much as 18 more months to reach full adulthood. In the meantime, they will establish their own territories as they age. *A 3 year old grizzly is not sexually mature: thus a cub. ( cub not necessarily meaning infant but rather child ).
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Post by OldGreenGrolar on May 17, 2020 17:58:40 GMT -5
A three year old bear is far from being full grown.
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Post by brobear on Jun 6, 2020 5:13:17 GMT -5
Brown Bears by Melissa Gish.
At 10 or 11 years old, a ( brown ) bear is fully grown. Brown bears can live up to 35 years in the wild and 10 years longer in captivity.
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Post by OldGreenGrolar on Jun 6, 2020 5:34:09 GMT -5
Polar bears seem to have shorter lives than brown bears but they live longer in captivity too. Yet they become full grown between 8 to 10 years old.
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Post by brobear on Jun 9, 2020 17:25:14 GMT -5
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Post by brobear on Jun 9, 2020 17:25:26 GMT -5
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Post by King Kodiak on Jun 26, 2020 10:44:12 GMT -5
Adult giant pandas have no natural enemies. There is an account of a snow leopard taking down a 2 year old Himalayan brown bear/red bear but a 2 year old bear is not even at sexual maturity and far from full grown. Of course not. A 2 year old brown bear is a cub. He becomes a subadult at around 2.5 years.
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Post by brobear on Jun 26, 2020 12:02:33 GMT -5
Adult giant pandas have no natural enemies. There is an account of a snow leopard taking down a 2 year old Himalayan brown bear/red bear but a 2 year old bear is not even at sexual maturity and far from full grown. Of course not. A 2 year old brown bear is a cub. He becomes a subadult at around 2.5 years.Basics - page #1... Reply #2: Giant pandas reach breeding maturity between four and eight years of age. Basics - page #2... Reply #26: The giant panda reaches breeding maturity between 4 and 10 years of age. *Therefore a giant panda is not a sub-adult until at least age 4 ( probably a little older ).
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